1m8p: Difference between revisions

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[[Image:1m8p.png|left|200px]]
==Crystal Structure of P. chrysogenum ATP Sulfurylase in the T-state==
<StructureSection load='1m8p' size='340' side='right' caption='[[1m8p]], [[Resolution|resolution]] 2.60&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1m8p]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Penicillium_chrysogenum Penicillium chrysogenum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1M8P OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1M8P FirstGlance]. <br>
</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=PPS:3-PHOSPHATE-ADENOSINE-5-PHOSPHATE+SULFATE'>PPS</scene><br>
<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1i2d|1i2d]], [[1g8g|1g8g]], [[1jhd|1jhd]]</td></tr>
<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Sulfate_adenylyltransferase Sulfate adenylyltransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.7.4 2.7.7.4] </span></td></tr>
<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1m8p FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1m8p OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1m8p RCSB], [http://www.ebi.ac.uk/pdbsum/1m8p PDBsum]</span></td></tr>
<table>
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/m8/1m8p_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/chain_selection.php?pdb_ID=2ata ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The structure of the cooperative hexameric enzyme ATP sulfurylase from Penicillium chrysogenum bound to its allosteric inhibitor, 3'-phosphoadenosine-5'-phosphosulfate (PAPS), was determined to 2.6 A resolution. This structure represents the low substrate-affinity T-state conformation of the enzyme. Comparison with the high substrate-affinity R-state structure reveals that a large rotational rearrangement of domains occurs as a result of the R-to-T transition. The rearrangement is accompanied by the 17 A movement of a 10-residue loop out of the active site region, resulting in an open, product release-like structure of the catalytic domain. Binding of PAPS is proposed to induce the allosteric transition by destabilizing an R-state-specific salt linkage between Asp 111 in an N-terminal domain of one subunit and Arg 515 in the allosteric domain of a trans-triad subunit. Disrupting this salt linkage by site-directed mutagenesis induces cooperative inhibition behavior in the absence of an allosteric effector, confirming the role of these two residues.


{{STRUCTURE_1m8p|  PDB=1m8p  |  SCENE=  }}
Allosteric inhibition via R-state destabilization in ATP sulfurylase from Penicillium chrysogenum.,MacRae IJ, Segel IH, Fisher AJ Nat Struct Biol. 2002 Dec;9(12):945-9. PMID:12426581<ref>PMID:12426581</ref>


===Crystal Structure of P. chrysogenum ATP Sulfurylase in the T-state===
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 
</div>
{{ABSTRACT_PUBMED_12426581}}
== References ==
 
<references/>
==About this Structure==
__TOC__
[[1m8p]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Penicillium_chrysogenum Penicillium chrysogenum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1M8P OCA].
</StructureSection>
 
==Reference==
<ref group="xtra">PMID:012426581</ref><references group="xtra"/>
[[Category: Penicillium chrysogenum]]
[[Category: Penicillium chrysogenum]]
[[Category: Sulfate adenylyltransferase]]
[[Category: Sulfate adenylyltransferase]]